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What is PED and how do we calculate it?

Price elasticity of demand (PED) is a measure of the responsiveness in demand, following a change in price, of a good (defintion). It is calculated by the formula: % change in quantity demanded/ % change in ...
JD
Answered by Jamie D. • Economics tutor
54422 Views

Use the following information: [[[[2H2(g) + O2(g) → 2H2O(l) ∆H = −572 kJ mol−1]]]] [[[[2H2(g) + O2(g) → 2H2O(g) ∆H = −484 kJ mol−1]]]] to calculate the enthalpy change for the process: H2O(g) → H2O(l)

Well the method I use for calculations in thermochemistry is a little different from the textbooks but is far easier to understand. I would approach this question by drawing out the chemical equations in a p...
LB
Answered by Louis B. • Chemistry tutor
10019 Views

Do you have any exam tips for Biology Paper 2?

So one thing I observed in my Biology class was that students would memorise every single piece of inforrmation about each biological process that was written on their 'comprehensive flashcards'. One thing t...
LB
Answered by Louis B. • Biology tutor
4484 Views

What is the difference between the first and second objectivity of Karl Barth's theology?

The first objectivity is God in His ' totally other ' self. We will never reach or experience Him of our own volition - you will only know God because God makes himself known through the second objectivity. ...
ST
2169 Views

I'm struggling to get work experience in a hospital or GP, what should I do?

Firstly, don't panic! I never had any NHS work experience when applying and I still made it. Lots of unis don't stipulate a required number of hours to have spent shaddowing a doctor, or any at all for that ...
SH
1767 Views